Auger decay of 1{sigma}{sub g} and 1{sigma}{sub u} hole states of the N{sub 2} molecule: Disentangling decay routes from coincidence measurements

Semenov, S K; Schoeffler, M S; Titze, J; Petridis, N; Jahnke, T; Cole, K; Schmidt, L Ph. H.; Czasch, A; Jagutzki, O; Schmidt-Boecking, H; Doerner, R; Akoury, D; Williams, J B; Landers, A L; Osipov, T; Lee, S; Prior, M H; Belkacem, A; Weber, Th; Cherepkov, N A

doi:10.1103/PHYSREVA.81.043426

Title: Auger decay of 1{sigma}{sub g} and 1{sigma}{sub u} hole states of the N{sub 2} molecule: Disentangling decay routes from coincidence measurements

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.043426· OSTI ID:21408662

Semenov, S K ^[1]; Schoeffler, M S; Titze, J; Petridis, N; Jahnke, T; Cole, K; Schmidt, L Ph. H.; Czasch, A; Jagutzki, O; Schmidt-Boecking, H; Doerner, R ^[2]; Akoury, D ^[2]; Williams, J B; Landers, A L ^[3]; Osipov, T; Lee, S; Prior, M H; Belkacem, A; Weber, Th ^[4]; Cherepkov, N A ^[1]

State University of Aerospace Instrumentation, 190000 St. Petersburg (Russian Federation)
Institut fuer Kernphysik, University Frankfurt, Max-von-Laue-Strasse 1, D-60438 Frankfurt (Germany)
Department of Physics, Auburn University Auburn, Alabama 36849 (United States)
Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

Results of the most sophisticated measurements in coincidence with the angular-resolved K-shell photoelectrons and Auger electrons and with two atomic ions produced by dissociation of N{sub 2} molecule are analyzed. Detection of photoelectrons at certain angles makes it possible to separate the Auger decay processes of the 1{sigma}{sub g} and 1{sigma}{sub u} core-hole states. The Auger electron angular distributions for each of these hole states are measured as a function of the kinetic-energy release of two atomic ions and are compared with the corresponding theoretical angular distributions. From that comparison one can disentangle the contributions of different repulsive doubly charged molecular ion states to the Auger decay. Different kinetic-energy-release values are directly related to the different internuclear distances. In this way one can trace experimentally the behavior of the potential energy curves of dicationic final states inside the Frank-Condon region. Presentation of the Auger-electron angular distributions as a function of kinetic-energy release of two atomic ions opens a new dimension in the study of Auger decay.

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OSTI ID:: 21408662

Journal Information:: Physical Review. A, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevA.81.043426; (c) 2010 The American Physical Society; ISSN 1050-2947

Country of Publication:: United States

Language:: English

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Vibrational branching ratios in the photoelectron spectra of N2 and CO: interference and diffraction effects Plésiat, Etienne; Decleva, Piero; Martín, Fernando Physical Chemistry Chemical Physics, Vol. 14, Issue 31 https://doi.org/10.1039/c2cp40693d	journal	January 2012
Time-resolved x-ray/optical pump-probe simulations on N ₂ molecules Hanna, Athiya Mahmud; Vendrell, Oriol; Santra, Robin Structural Dynamics, Vol. 6, Issue 2 https://doi.org/10.1063/1.5053995	journal	March 2019
Molecular frame Auger electron energy spectrum from N ₂ Cryan, J. P.; Glownia, J. M.; Andreasson, J. Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 45, Issue 5 https://doi.org/10.1088/0953-4075/45/5/055601	journal	February 2012
Angular distributions of photoelectrons and interatomic-Coulombic-decay electrons from helium dimers: Strong dependence on the internuclear distance Havermeier, T.; Kreidi, K.; Wallauer, R. Physical Review A, Vol. 82, Issue 6 https://doi.org/10.1103/physreva.82.063405	journal	December 2010
Interatomic Coulombic decay of fixed-in-space neon dimers Semenov, S. K.; Kreidi, K.; Jahnke, T. Physical Review A, Vol. 85, Issue 4 https://doi.org/10.1103/physreva.85.043421	journal	April 2012
Ultrafast x-ray-induced nuclear dynamics in diatomic molecules using femtosecond x-ray-pump–x-ray-probe spectroscopy Lehmann, C. S.; Picón, A.; Bostedt, C. Physical Review A, Vol. 94, Issue 1 https://doi.org/10.1103/physreva.94.013426	journal	July 2016
Ultrafast x-ray-induced nuclear dynamics in diatomic molecules using femtosecond x-ray-pump–x-ray-probe spectroscopy Lehmann, C. S.; Picón, A.; Bostedt, C. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2017-00368	text	January 2016

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Title: Auger decay of 1{sigma}{sub g} and 1{sigma}{sub u} hole states of the N{sub 2} molecule: Disentangling decay routes from coincidence measurements

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Cited By (7)

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